NO! The manufacturer cannot void your warranty simply because you choose to save money using compatible or remanufactured products. You are protected under the Magnusson Moss Warranty Improvement Act of 1975. You can read more about your rights to use compatible Ink & Toner here:

We guarantee all Compatible & Remanufactured products with a One Year 100% Quality & Satisfaction Guarantee. We guarantee every product is made to the highest standards and tested for quality assurance before leaving our facility. You can return any product for Refund within 90 Days of purchase or Exchange any product(s) within 365 days of the original purchase date. All Genuine OEM Product(s) are backed by the OEM (Original Equipment Manufacturer) directly. Please visit our return policy page for more information.

At Inkgrabber, we treat all our customers like part of the family and take our customer service feedback very seriously. That's why Inkgrabber has paired with eKomi, the number 1 independent ratings provider, to bring you REAL customer feedback. You can shop with confidence knowing that you're getting a high quality product from a credible vendor. See what our customers are saying about us by checking out or InkGrabber Reviews.

As a family owned and operated business, our #1 priority is to treat our customers like they’re part of our family. Our goal is to combine low pricing with exceptional customer service to keep our relationship with you going strong for years to come! With this philosophy, we have achieved a 5-Star rating with Google & Ekomi Reviews, as well as an A+ with the BBB, making us one of the highest rated ink merchants in the United States.

Brother 780 Fax Cartridges

The Brother Fax 780 is a copier, printer, and fax machine for the office environment. It contains a 20 page Automatic Document Feeder for unassisted faxing and copying. It also has 65 programmable speed dial numbers and 3 workgroups to help efficiency around the office. This fax machine can hold up to 250 sheets with an optional add-on and produce printouts with resolutions up to 203 x 392 dpi. The Brother Fax 780 contains one Brother fax cartridge that can be reused to help save money.

This is a useful fax machine that comes loaded with some business features to help users accomplish the task at hand. This machine has Auto fax / Telephone switching for receiving faxes and voice mails on one line. Another nice feature is the caller ID and adjustable distinctive ring tones users can set. Each Brother Fax 780 toner cartridge will yield up to 400 pages and each reusable cartridge contains rolls which need replacing when ink runs out. This machine can produce approximately 4 incoming pages or copies per minute.

To help lower operating costs of the Brother Fax 780, affordable fax ribbons are available in Compatible replacement rolls. We carry the Brother Compatible PC92RF Fax ribbon refill rolls twin pack (box of 2) for use in the PC 91. These replacement ribbon rolls have all been tested thoroughly and come with a 90 day Money Back Guarantee to ensure you receive a quality product.